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DIMETHYL CARBONATE

ICSC: 1080

Carbonic acid, dimethyl ester
Methyl carbonate
C3H6O3 / H3COCOOCH3
Molecular mass: 90.1
ICSC # 1080 		CAS # 616-38-6
RTECS # FG0450000
UN # 1161
EC # 607-013-00-6
April 20, 2005 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Highly flammable.
NO open flames, NO sparks, and NO smoking. NO contact with oxidants.
Water spray. Alcohol-resistant foam. Dry powder. Carbon dioxide.
EXPLOSION Vapour/air mixtures are explosive.
Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling. Use non-sparking handtools.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE


•INHALATION Cough.
Ventilation.
Fresh air, rest.
•SKIN
Protective gloves.
Rinse and then wash skin with water and soap.
•EYES Redness.
Safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION
Do not eat, drink, or smoke during work.
Rinse mouth.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Personal protection: filter respirator for organic gases and vapours. Remove all ignition sources. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT wash away into sewer.
Fireproof. Separated from strong oxidants. Well closed. Store in an area without drain or sewer access.

F symbol
R: 11
S: 2-9-16
UN Hazard Class: 3
UN Packing Group: II
ICSC: 1080 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

DIMETHYL CARBONATE

ICSC: 1080

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:
The vapour is heavier than air and may travel along the ground; distant ignition possible. The vapour mixes well with air, explosive mixtures are formed easily.

CHEMICAL DANGERS:
Reacts violently with oxidants and potassium tert-butoxide causing fire hazard. The substance decomposes on burning producing irritating fumes .

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK not established.


ROUTES OF EXPOSURE:


INHALATION RISK:


EFFECTS OF SHORT-TERM EXPOSURE:
The vapour is mildly irritating to the eyes .

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:

PHYSICAL
PROPERTIES

Boiling point: 90°C
Melting point: 3°C
Relative density (water = 1): 1.07
Solubility in water:
none
Vapour pressure, kPa at 25°C: 7.4
Relative vapour density (air = 1): 3.1
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.1
Flash point:
18°C o.c.
Auto-ignition temperature: 458°C
Explosive limits, vol% in air: 4.2-12.9

ENVIRONMENTAL
DATA


N O T E S

Transport Emergency Card: TEC (R)-30S1161

NFPA Code: H1; F3; R1

ADDITIONAL INFORMATION



ICSC: 1080 DIMETHYL CARBONATE
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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